ROUGH CUT (NO REPORTER NARRATION).
Former Florida Governor Jeb Bush takes aim at fellow Floridian Marco Rubio during heated exchange at the Republican debate in Boulder, Colorado, calling on Rubio to "show up for work" as senator while he runs for the Republican presidential nomination.
"You should be showing up to work," Bush said. "I mean literally, the Senate, what is it like a French work week, you get like three days where you have to show up? You can campaign. Or just resign and let someone else take the job."
Lagging contenders such as former Florida Governor Jeb Bush and U.S. Senator Marco Rubio of Florida are running out of time to turn the tide in a campaign dominated by provocative rhetoric that has played to the strengths of Trump, a bombastic reality television star and developer, and Carson, a soft-spoken neurosurgeon.

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